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1 specimen
1. образец3. пробаbend specimen — образец для испытания на изгиб
biaxial specimen — двухосный образец
Charpy specimen — образец Шарпи ( для испытания на ударную вязкость)
electropolished specimen — электрополированный образец
endurance test specimen — образец для испытания на выносливость [усталость]
fatigue test specimen — образец для испытания на усталость [выносливость]
filament-wound specimen — образец, изготовленный методом намотки нити
flexural specimen — образец для испытания прочности на изгиб
JANAF specimen — стандартный образец Объединённого отдела армии, ВМС и ВВС США по определению физических свойств материалов
laminate specimen — образец слоистого материала
longitudinal specimen — 1) продольный образец 2) образец, вырезанный параллельно направлению прокатки [вытяжки, выдавливания]
metallographic specimen — металлографический образец, шлиф для металлографического анализа, микрошлиф
microtensile specimen — микрообразец для испытания на растяжение
notched specimen — надрезанный образец, образец с надрезом
previously deformed specimen — предварительно деформированный образец
shear test specimen — образец для испытаний на срез [сдвиг, скалывание]
standard test specimen — стандартный образец для испытаний
tensile test specimen — образец для испытания на растяжение
test specimen — испытуемый образец, образец для испытаний
tubular specimen — трубчатый образец
uniaxial solid-propellant tensile specimen — образец твёрдого ракетного топлива для испытаний на одноосное растяжение
wound specimen — образец, изготовленный методом намотки; намотанный образец
English-Russian dictionary of aviation and space materials > specimen
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2 swab
tr[swɒb]3 (cleaning cloth) paño, bayeta, trapo; (mop) fregona1 SMALLMEDICINE/SMALL (wound) limpiar2 SMALLMARITIME/SMALL (deck) limpiar, fregar1) clean: lavar, limpiar2) : aplicar a (con hisopo)n.• algodón s.m.• escobillón s.m.• escobón s.m.• estropajo s.m.• lampazo s.m.v.• lampacear v.• limpiar v.
I swɑːb, swɒba) (of cotton, gauze) hisopo m húmedob) ( specimen) muestra f, frotis m
II
a) \<\<wound\>\> limpiar (con algodón, gasa etc)b)[swɒb]to swab (down) — \<\<deck\>\> lavar, limpiar
1. N1) (=cloth, mop) estropajo m, trapo m2) (Naut) lampazo m3) (Med) (for cleaning wound) algodón m, tampón m ; (for specimen) frotis m2. VT1) (Naut) (also: swab down) limpiar, fregar2) (Med) [+ wound] limpiar (con algodón)* * *
I [swɑːb, swɒb]a) (of cotton, gauze) hisopo m húmedob) ( specimen) muestra f, frotis m
II
a) \<\<wound\>\> limpiar (con algodón, gasa etc)b)to swab (down) — \<\<deck\>\> lavar, limpiar
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3 swab
I [swɒb]2) (mop) strofinaccio m.; mar. redazza f.II [swɒb]1) med. lavare [qcs.] con un tampone [ wound]* * *[swɒb]1. n(Med: for cleaning wound, for specimen) tampone m2. vtNaut, (also: swab down) redazzare* * *swab /swɒb/n.3 (med.) campione prelevato con un tampone(to) swab /swɒb/v. t.● to swab out, pulire a fondo ( una stanza, una ferita, ecc.) □ to swab up, raccogliere ( un liquido) con uno straccio; tirare su (fam.).* * *I [swɒb]2) (mop) strofinaccio m.; mar. redazza f.II [swɒb]1) med. lavare [qcs.] con un tampone [ wound] -
4 swab
noun* * *[swɒb, AM swɑ:b]to take a \swab of sb's ear/throat bei jdm einen Ohr-/Rachenabstrich vornehmenII. vt<- bb->▪ to \swab sth etw abtupfen▪ to \swab [down] ⇆ sth etw scheuernto \swab the deck das Deck schrubben* * *[swɒb]1. n2. vt* * *A s1. a) Scheuerlappen mb) Schrubber mc) Mopp md) Handfeger me) SCHIFF Schwabber m2. MEDa) Wattebausch m, Tupfer mb) Abstrichtupfer mc) Abstrich m3. SCHIFF sl (Offiziers)Epaulette f4. sl Trottel m pejB v/tswab up aufwischen2. MEDa) Blut abtupfenb) eine Wunde betupfen* * *noun* * *v.aufwischen v. -
5 cut
A n1 ( incision) gen entaille f ; ( in surgery) incision f ; to make a cut in faire une entaille dans [cloth, wood] ; [surgeon] faire une incision dans [flesh] ;4 ○ ( share) part f ; a cut of the profits/takings une part des bénéfices/recettes ; she takes a 25% cut of the total sum elle prend 25% de la somme globale ;5 ( reduction) réduction f (in de) ; a cut in prices, a price cut une baisse des prix ; a cut in the interest/unemployment rate une baisse du taux d'intérêt/de chômage ; job cuts suppression f d'emplois ; he agreed to take a cut in salary il a accepté qu'on lui diminue son salaire ;9 Cin ( removal of footage) coupure f ; ( shot) plan m de raccord (from de ; to à) ; final cut final cut m ;11 ( shorter route) raccourci m ;13 Sport coup m tranchant ;1 ( slice) couper [bread, fabric, metal, paper, slice, wood] ; faire [hole, slit] ; to cut sth out of couper qch dans [fabric] ; découper qch dans [magazine] ; to cut sth in half ou in two couper qch en deux ; to cut sth into quarters/slices/pieces couper qch en quartiers/tranches/morceaux ; to cut sth to shreds ou ribbons mettre [qch] en pièces [fabric, document] ; my hands were cut to shreds mes mains étaient tout abîmées ;2 ( sever) couper [rope, ribbon, throat, wire] ; ouvrir [vein] ; couper [flower, stem] ; faucher, couper [wheat] ; fig rompre [ties, links] ;3 ( carve out) faire [notch] ; creuser [channel, tunnel] ; graver [initials] (in dans) ; to cut sth open ouvrir [packet, sack] ; [surgeon] ouvrir [chest, stomach] ; to cut one's way through se frayer un chemin dans [undergrowth] ;4 ( wound) lit ( once) blesser [victim] ; ( repeatedly) taillader [victim] ; fig [remark] blesser [person] ; to cut one's finger/lip se couper le doigt/la lèvre ; the rocks cut their feet les rochers leur ont tailladé les pieds ; the wind cut me like a knife le vent était mordant ;5 ( trim) couper [grass, hair] ; tailler [hedge] ; to cut one's fringe/finger nails se couper la frange/les ongles ; to have one's hair cut se faire couper les cheveux ;6 (shape, fashion) tailler [gem, marble, wood] ; découper [pastry] ; tailler [suit] ; [locksmith] refaire [key] ; to cut sth into triangles/strips couper qch en triangles/bandes ; to cut sth into the shape of a bird découper qch en forme d'oiseau ;7 ( liberate) to cut sb from sth dégager qn de [wreckage] ; to cut sb/sth free ou loose libérer qn/qch (from de) ;8 ( edit) couper [article, film] ; supprimer [scene] ; we cut the film to 90 minutes nous avons réduit le film à 90 minutes ; I cut the article from 3,000 to 2,000 words j'ai réduit l'article de 3 000 à 2 000 mots ;9 ( reduce) baisser [price, rate] ; réduire [cost, expenditure, inflation, list, number, staff, wages] (by de) ; diminuer [length, size, working day, salary] ; comprimer [budget] ; we've cut prices by 10% on a baissé les prix de 10% ; we've cut the amount of time we spend on the phone nous passons moins de temps au téléphone ;11 ( switch off) éteindre [headlights] ;13 Comput couper [paragraph, section] ; cut and paste couper-coller ; cut the first paragraph and paste it in at the end coupez le premier paragraphe et collez-le à la fin ;14 Games couper [cards, deck] ;15 ( dilute) couper [drink, drugs] (with avec) ;17 ○ ( stop) cut the chatter arrêtez de jacasser ; cut the flattery/sarcasm! assez de flatteries/sarcasme! ; cut the crap ◑ ! arrête de déconner ◑ ! ;19 ( snub) ignorer, snober [person] ; she cut me dead in the street elle m'a complètement ignoré dans la rue ;1 (slice, make an incision) couper ; this knife cuts well ce couteau coupe bien ; cardboard cuts easily le carton est facile à couper ; cut along the dotted line coupez suivant les pointillés ; will the cake cut into six? tu crois que le gâteau fera pour six? ; to cut into entamer [cake, pie] ; couper [fabric, paper] ; inciser [flesh, organ] ;2 (move, go) to cut across the park couper à travers le parc ; our route cuts across Belgium notre itinéraire traverse la Belgique ; the lorry cut across my path le camion m'a coupé la route ; to cut down a sidestreet couper par une petite rue ; to cut in front of sb ( in a queue) passer devant qn ; ( in a car) faire une queue de poisson à qn ;3 Cin the camera cut to the president la caméra s'est braquée sans transition sur le président ; to cut from the street to the courtroom [camera] passer de la rue à la salle d'audience ;4 Games couper ; to cut for the deal couper les cartes pour déterminer qui va donner ;D v refl ( p prés - tt- ; prét, pp cut) to cut oneself se couper ; to cut oneself on the foot/chin se couper au pied/menton ; to cut oneself on broken glass se couper avec un morceau de verre ; to cut oneself a slice of meat se couper une tranche de viande ; cut yourself some cake coupe-toi un morceau de gâteau.2 ( shaped) [gem, stone] taillé ; a well-cut jacket une veste bien coupée ; the trousers are cut wide le pantalon est coupé large ;5 ( edited) [film, text] avec coupures (after n).to be a cut above sb/sth être supérieur à qn/qch ; to cut and run fig fuir, partir en courant ; to cut both ways [argument, measure] être à double tranchant ; to have one's work cut out to do avoir du mal à faire.■ cut across:▶ cut across [sth]▶ cut across [sb] interrompre.■ cut along se dépêcher.■ cut at:▶ cut at [sth] attaquer [trunk, branches] ; taillader [rope] ; tailler dans [hair, stone].■ cut away:▶ cut away [sth] enlever [dead wood, diseased tissue].■ cut back:▶ cut back faire des économies (on de) ;▶ cut back [sth], cut [sth] back2 ( prune) tailler.■ cut down:▶ cut down réduire sa consommation ; ‘would you like a cigarette?’-‘no, I'm trying to cut down’ ‘veux-tu une cigarette?’-‘non merci, j'essaie de fumer moins’ ; to cut down on réduire sa consommation de [alcohol, fatty foods] ;▶ cut down [sth], cut [sth] down1 ( chop down) abattre [forest, tree] ;2 ( reduce) réduire [consumption, spending, number, time, scale] (from de, to à) ;▶ cut [sb] down littér [disease] emporter liter [person] ; to cut sb down to size rabattre le caquet à qn.■ cut in:▶ cut in1 ( interrupt) ( in conversation) intervenir ; ( in dancing) s'interposer ; ‘what about me?’ he cut in ‘et moi, alors?’ dit-il en interrompant la discussion ; ‘may I cut in?’ ( on dance floor) ‘vous permettez (que je danse avec madame)?’ ; to cut in on sb ( in conversation) interrompre qn ;2 ( in vehicle) the taxi cut in in front of me le taxi m'a fait une queue de poisson ;▶ cut [sb] in mettre qn dans le coup ; they cut me in on the deal ils m'ont mis dans le coup.■ cut off:▶ cut off [sth], cut [sth] off1 ( remove) couper [hair, piece, slice, top, corner] ; enlever [excess, crusts] ; to cut off one's finger se couper le doigt ; to cut off sb's head/fingers couper la tête/les doigts à qn ; she had all her hair cut off elle s'est fait couper les cheveux très court ;2 ( reduce) to cut 1% off inflation réduire l'inflation de 1% ; they've cut 10% off their prices ils ont baissé leurs prix de 10% ; it cut 20 minutes off the journey cela a raccourci le trajet de 20 minutes ; she cut ten seconds off the world record elle a amélioré le record mondial de dix secondes ;3 ( disconnect) couper [gas, power, telephone, water, supply lines] ;▶ cut off [sth]3 ( block) bloquer [retreat, escape route] ;▶ cut [sb] off1 Telecom couper qn ;2 ( disinherit) déshériter qn ; he cut me off without a penny il ne m'a pas laissé un sou ;3 ( interrupt) interrompre qn ; she cut me off in mid-phrase elle m'a interrompu en plein milieu d'une phrase ;▶ cut [sb] off, cut off [sb] ( isolate) [group, person] couper [person] ; to be cut off by the tide se faire surprendre par la marée ; to feel cut off se sentir coupé ; to cut oneself off se couper (from de).■ cut out:▶ cut out [engine, fan] s'arrêter ;▶ cut out [sth] supprimer [alcohol, fatty food] ;▶ cut [sth] out, cut out [sth]1 ( snip out) découper [article, piece, shape] (from dans) ;2 ( remove) enlever [tumour] (from de) ; couper [reference, sentence] ; supprimer [scene, chapter] ;4 ○ ( stop) cut the noise out! arrêtez de faire du bruit! cut out the laughing/fighting! arrêtez de rire/de vous disputer! ; cut it out! ça suffit! ;▶ cut [sb] out1 ( isolate) exclure qn ; to cut sb out of one's will déshériter qn ;2 to be cut out for teaching/nursing être fait pour être professeur/infirmière ; he's not cut out to be a teacher il n'est pas fait pour être professeur.■ cut short:▶ cut short [sth], cut [sth] short abréger [holiday, visit, discussion] ; to cut the conversation short couper court ;▶ cut [sb] short interrompre.■ cut through:▶ cut through [sth] [knife, scissors] couper [cardboard, plastic] ; [detergent] attaquer [grease] ; [whip] fendre [air] ; [boat] fendre [water] ; [person] éviter [red tape] ; [voice] traverser [noise].■ cut up:▶ cut up ○ US chahuter ;▶ cut [sth] up, cut up [sth] couper [food, meat, onions] ; disséquer [specimen] ; [murderer] couper [qch] en morceaux [corpse] ; to cut sth up into strips/pieces couper qch en bandes/morceaux ;▶ cut [sb] up2 ( upset) to be very cut up être très affecté (about, by par) ;3 ○ Aut faire une queue de poisson à. -
6 show
1. I1) a scar (a mark of a wound, etc.) shows шрам и т.д. виден /заметен/; а stain shows проступает пятно; does my slip show? у меня не выглядывает комбинация?; your straps are showing у тебя бретельки видны2) time will show время покажет2. II1) show in some manner the pattern shows plainly рисунок ясно виден /четко проступает/; show at some time buds are just showing почки только начинают появляться; the scar still shows шрам еще заметен2) show somewhere where is the film showing? где идет этот фильм?3. IIIshow smth.1) show one's new hat (one's books, one's designs, a specimen of his new work, etc.) показывать свою новую шляпу и т.д.; show a film показывать /демонстрировать/ фильм; show a cheap line of goods выставлять /демонстрировать/ дешевые товары; show one's wares разложить свои товары; show one's tickets (one's passport, one's licence, etc.) предъявлять билеты и т.д.; show the contents of your pockets покажи, что [там] у тебя в карманах; show one's legs (one's breast, one's arms, etc.) обнажать ноги и т.д.; that dress shows your underwear из-под этого платья у вас видно нижнее белье; show one's teeth оскалить зубы; show one's face /one's nose/ появляться, показываться2) show signs of intelligence (signs of use, no signs of wear, great improvement, more learning, a noble spirit, taste, a great deal of originality, unexpected daring, etc.) обнаруживать признаки ума и т.д.; he showed no signs of life он не проявлял признаков жизни; he showed no sign of having heard anything он и виду не подал, что что-то слышал; his cheeks showed two red patches на его щеках выступили два красных пятна; he shows his age по нему видно, что он немолод; his face showed his delight (his pleasure) его лицо выражало восторг (удовольствие); she showed neither joy nor anger она не проявляла ни радости, ни злости, по ней не было видно, радуется она или злится; try not to show any emotion постарайтесь не показывать никаких эмоций /не показывать виду, что вы волнуетесь/; show one's true character показывать свой истинный характер; show resemblance обнаруживать сходство, быть похожим; show (great) promise подавать (большие) надежды; show good judgement судить здраво, проявлять трезвый подход к вещам; show favour (courage, intelligence, etc.) проявлять благосклонность и т.д.; show one's hand /one's cards/ раскрыть свой карты3) show the existence of smth. (the impossibility of doing smth., the falsity of the tale, the absurdity of the explanation, etc.) показывать /доказывать/ существование чего-л. и т.д.; his edginess shows a lack of self-confidence его нервозность говорит о неуверенности в себе4) show time (the hour, speed, the way, a loss, a net profit of t 1000, etc.) показывать время и т.д.; the indicator shows a speed of 60 miles an hour счетчик /спидометр/ показывает скорость [в] шестьдесят миль в час5) a light carpet will show the dirt на светлом ковре будет видна /заметна/ грязь; the picture shows three figures на картине изображены три фигуры4. IV1) show smth. in some manner show smth. openly (reluctantly, occasionally, etc.) выставлять /показывать, демонстрировать/ что-л. открыто и т.д.; show smth. somewhere show smth. here and there выставлять /показывать/ что-л. повсюду; never show your face again here не смей здесь больше показываться, чтоб и носа твоего здесь не было2) show smth. in some manner show smth. clearly (obviously, distinctly, etc.) ясно и т.д. обнаруживать /проявлять/ что-л.3) show smth. in some manner show smth. conclusively (fully, unequivocally, clearly, partly, subsequently, etc.) убедительно и т.д. показывать /доказывать/ что-л.4) show smb. somewhere show smb. upstairs (downstairs, out) проводить кого-л. наверх (вниз, к выходу); show him in приведите его сюда5. Vshow smb. smth.1) show the teacher your hands (him your new hat, the children some interesting pictures, me what is inside, etc.) показать учителю руки и т.д.; what can I show you, madam? что вам угодно, мадам? (в магазине, ателье и т.п.); show smb. the way показывать кому-л. дорогу, объяснять кому-л., как пройти; show smb. the way to town (to the village, to the station, etc.) объяснять /показывать/ кому-л., как пройти в город и т.д.; show smb. the way to learn languages (to master the art, to achieve one's ends, etc.) объяснять кому-л., как изучать языки и т.д.; show smb. the door указать кому-л. на дверь id I could show him a thing or two coll. я могу ему кое-что показать2) show smb. kindness (great favour, indifference, etc.) проявлять доброту и т.д. по отношению к кому-л.; he showed me great sympathy when I was in trouble он проявил ко мне большее участие, когда я попал в беду6. VIIshow smb. to be smb. show smb. to be a rascal (to be a coward, etc.) показать /доказать/, что кто-л. подлец и т.д.; show smb. how to do smth. show smb. how to operate this machine (how to draw a chart, etc.) показать кому-л., как работать на этой машине и т.д.; show me how to read (how to write, how to do the problem, etc.) научи меня читать и т.д.; show smb. what to do показать кому-л. /научать кого-л. /, что делать7. XI1) be shown to smb. I won't believe it unless it's shown to me я не поверю, пока мне этого не покажут; be shown (on) smth. the roads are shown in red дороги обозначены красным; as shown in the illustration (in the table, in the graph, in the statement above, etc.) как показано на рисунке и т.д.; the place shown on the map место, указанное на карте; machine shown in section машина, показанная в разрезе2) be shown (in)to (out of) smth. I was shown into the room меня провели в комнату; I was shown to the gates меня проводили до ворот; he was shown out of the office его выпроводили из кабинета; be shown over (round, through) smth. the visitors were shown all over (round) the city приезжих водили по (всему) городу: I was shown through the rooms of the hotel мне показали номера гостиницы3) be shown in some manner that... it can easily be shown that... нетрудно доказать, что...8. XVshow to be in some state the house shows white from here отсюда дом выглядит белым; oil paintings show best at a distance картины маслом лучше смотреть на расстоянии9. XVIshow from some place show from the top of the mountain (from a great distance, from here, etc.) виднеться /быть видным/ с вершины горы и т.д.; show through (above, below, etc.) smth. show through the fog (through the trees, above the wood, below the water, etc.) быть видным /виднеться/ сквозь туман и т.д.; the veins show under the skin вены просвечивают через кожу; show on smth. the buds are already showing on the trees на деревьях появились почки || show in smb.'s face /in smb.'s expression/ отражаться на лице; anger showed in his face на его лице отразился /был написан/ гнев10. XVIII1) show oneself after the play the audience called for the author to show himself по окончании спектакля публика потребовала, чтобы вышел автор; the sun has shown itself above the horizon солнце появилось над горизонтом2) show oneself as being of some quality show oneself cruel (generous, very friendly, etc.) проявить жестокость и т.д.; show oneself smb. show oneself a first-rate leader проявить себя первоклассным организатором; show oneself a practical man доказать свою практичность; show oneself a coward показывать свою трусость; he showed himself as accommodating as possible он доказал свою необыкновенную сговорчивость; show oneself to be smth. he showed himself to be unreliable он показал себя ненадежным человеком11. XIX1show like smth. show like a disk (like a small dot, etc.) казаться /выглядеть/ диском и т.д.; the building shows from here like a dark streak отсюда здание кажется темной полосой12. XX1show as smth. the yacht only shows as a dot on the skyline яхта кажется всего лишь точкой на горизонте13. XXI11) show smth. on (at, in, etc.) smth. show a place on a map (a face on a picture, appoint on a diagram, etc.) показывать место на карте и т.д.; show one's flowers at a flower-show (specimens of fruit and vegetables at an annual show, pictures at the Academy, goods in a window, butterflies in glass cases, etc.) выставлять свой цветы на выставке и т.д.; what are they showing at the theatre? что идет в театре?; show the way to smth. show the way to the theatre (to the centre of the city, etc.) указать дорогу к театру и т.д., рассказать /объяснить/, как пройти к театру и т.д.; the signpost shows the way to London указатель показывает дорогу на Лондон; show smth. to smb. show the picture to all his friends (your tongue to the doctor, etc.) показывать картину всем его друзьям и т.д.; have you shown this to anyone? вы это кому-нибудь показывали?2) show smb. into (out of) smth. show him into the room (the visitor into his den, the man out of his study, etc.) проводить его в комнату и т.д.; show smb. to some place show the man to the door (to the gate, to the exit, etc.) проводить человека до двери /дверей/ и т.д.; show smb. to his seat проводить кого-л. на место; show smb. over (all over, round) smth. show smb. [all] over the house (round the plant, over the ship, round the city, etc.) показать кому-л. дом и т.д., водить кого-л. по дому и т.д.3) show smth. for (towards, with, at) smth., smb. show a taste for work (a liking for music, affection for the child, respect for him, sympathy with the girl, hatred towards the enemy, jealousy towards her husband, etc.) проявлять вкус к работе и т.д.; show admiration for smb. выражать восхищение [перед] кем-л.; show regard /consideration/ for smb. считаться с кем-л., проявлять уважение к кому-л.; show displeasure at smb.'s appearance (no emotion at their words, etc.) обнаруживать /показывать/ неудовольствие при чьем-л. появлении и т.д.; he showed his pleasure at the news новость его явно обрадовала; show smth. in smth., smb. show zeal in one's work (interest in her brother, etc.) проявлять рвение в работе и т.д. || show mercy on smb. проявлять милосердие /сострадание/ к кому-л., щадить кого-л.4) show smth. in smth. show a rise in temperature (a fall in prices, etc.) показывать повышение температуры и т.д.; this shows a decline in prosperity это служит показателем понижения уровня благосостояния; the chart shows a rise in birthrates диаграмма показывает прирост /увеличение/ рождаемости; show smth. between smth. show the relation between smth. and smth. обнаруживать отношение /связь/ между чем-л. и чем-л.; the experiment shows the relation between work and heat эксперимент подтверждает /указывает на/ существование связи между работой и тепловой энергией14. XXV1) show what... (how..., etc.) we will show what he was doing мы покажем, что он делал; the diagram shows how this device works диаграмма объясняет, как работает это устройство he showed that he was annoyed no нему было видно, что он недоволен2) show that... (why..., how..., etc.) show that it is true (that it is silly, why he needed the book, how false it was, how much he felt it, etc.) доказывать /объяснять/, что это правда и т.д.; it only shows how little you know (that I was right, that you were not telling the truth, etc.) это только говорит о том, как вы мало знаете и т.д.; that /it/ goes to show that... это свидетельствует о том, что...; nothing seemed to show that he was guilty ничто, казалось, не указывало на его виновность XXIV show me what you have in your bag покажите, что у вас в сумке -
7 swab
A n1 Med nettoyer [qch] avec un tampon, tamponner [wound] ; -
8 swab
-
9 Charpy, Augustin Georges Albert
SUBJECT AREA: Metallurgy[br]b. 1 September 1865 Ouillins, Rhône, Franced. 25 November 1945 Paris, France[br]French metallurgist, originator of the Charpy pendulum impact method of testing metals.[br]After graduating in chemistry from the Ecole Polytechnique in 1887, Charpy continued to work there on the physical chemistry of solutions for his doctorate. He joined the Laboratoire d'Artillerie de la Marine in 1892 and began to study the structure and mechanical properties of various steels in relation to their previous heat treatment. His first memoir, on the mechanical properties of steels quenched from various temperatures, was published in 1892 on the advice of Henri Le Chatelier. He joined the Compagnie de Chatillon Commentry Fourchamboult et Decazeville at their steelworks in Imphy in 1898, shortly after the discovery of Invar by G.E. Guillaume. Most of the alloys required for this investigation had been prepared at Imphy, and their laboratories were therefore well equipped with sensitive and refined dilatometric facilities. Charpy and his colleague L.Grenet utilized this technique in many of their earlier investigations, which were largely concerned with the transformation points of steel. He began to study the magnetic characteristics of silicon steels in 1902, shortly after their use as transformer laminations had first been proposed by Hadfield and his colleagues in 1900. Charpy was the first to show that the magnetic hysteresis of these alloys decreased rapidly as their grain size increased.The first details of Charpy's pendulum impact testing machine were published in 1901, about two years before Izod read his paper to the British Association. As with Izod's machine, the energy of fracture was measured by the retardation of the pendulum. Charpy's test pieces, however, unlike those of Izod, were in the form of centrally notched beams, freely supported at each end against rigid anvils. This arrangement, it was believed, transmitted less energy to the frame of the machine and allowed the energy of fracture to be more accurately measured. In practice, however, the blow of the pendulum in the Charpy test caused visible distortion in the specimen as a whole. Both tests were still widely used in the 1990s.In 1920 Charpy left Imphy to become Director-General of the Compagnie des Aciéries de la Marine et Homecourt. After his election to the Académie des Sciences in 1918, he came to be associated with Floris Osmond and Henri Le Chatelier as one of the founders of the "French School of Physical Metallurgy". Around the turn of the century he had contributed much to the development of the metallurgical microscope and had helped to introduce the Chatelier thermocouple into the laboratory and to industry. He also popularized the use of platinum-wound resistance furnaces for laboratory purposes. After 1920 his industrial responsibilities increased greatly, although he continued to devote much of his time to teaching at the Ecole Supérieure des Mines in Paris, and at the Ecole Polytechnique. His first book, Leçons de Chimie (1892, Paris), was written at the beginning of his career, in association with H.Gautier. His last, Notions élémentaires de sidérurgie (1946, Paris), with P.Pingault as co-author, was published posthumously.[br]BibliographyCharpy published important metallurgical papers in Comptes rendus… Académie des Sciences, Paris.Further ReadingR.Barthélémy, 1947, "Notice sur la vie et l'oeuvre de Georges Charpy", Notices et discours, Académie des Sciences, Paris (June).M.Caullery, 1945, "Annonce du décès de M.G. Charpy" Comptes rendus Académie des Sciences, Paris 221:677.P.G.Bastien, 1963, "Microscopic metallurgy in France prior to 1920", Sorby Centennial Symposium on the History of Metallurgy, AIME Metallurgical Society Conference Vol.27, pp. 171–88.ASDBiographical history of technology > Charpy, Augustin Georges Albert
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